interface  related{
  id: string,
  questionNo: string,
  stem: string,
  createdAt: string

}
export  interface questionDetail{
  stem: string,
  id: string,
  content: string,
  answer: string,
  difficulty: number,
  stage: string[],
  collectFlag:number ,
  likeFlag: number,
  likeCount: number,
  creatorName:string,
  creatorAvatar:string,
  views: number,
  createdAt: string,
  relatedQuestions:related[]
}